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GlossaryLevonorgestrel

synthetic hormone used in emergency contraception like Plan B

Levonorgestrel is a synthetic hormone used in various forms of contraception, including emergency contraceptive pills like Plan B. It works by preventing ovulation, fertilization, or implantation of a fertilized egg, thereby reducing the chance of pregnancy if taken shortly after unprotected sex.

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research Incidence of Androgenic Dermatologic Side Effects Following Placement of a Levonorgestrel Intrauterine Device for Menorrhagia: A Survey-Based Study

11 citations, December 2017 in “Journal of the American Academy of Dermatology”

The levonorgestrel intrauterine device for heavy periods may cause acne, hair loss, and excess hair growth.

research Effects of 17 Alpha-Ethinylestradiol, Norethindrone, and Levonorgestrel on Root Growth of Arabidopsis Thaliana

January 2006 in “Xibei zhiwu xuebao”

Norethindrone and levonorgestrel can enhance or inhibit root growth in Arabidopsis thaliana depending on the concentration.

Effects of Depot Medroxyprogesterone Acetate, the Copper IUD, and the Levonorgestrel Implant on Testosterone, Sex Hormone Binding Globulin, and Free Testosterone Levels: Ancillary Study of the ECHO Randomized Clinical Trial

research Effects of Depot Medroxyprogesterone Acetate, the Copper IUD, and the Levonorgestrel Implant on Testosterone, Sex Hormone Binding Globulin, and Free Testosterone Levels: Ancillary Study of the ECHO Randomized Clinical Trial

March 2024 in “BMC women's health”

The levonorgestrel implant increases free testosterone and lowers SHBG more than DMPA-IM and the copper IUD.

research Molecular Interactions of Natural and Synthetic Steroids in Female Hamsters’ Flank Organs

1 citations, March 2012 in “Journal of Dermatological Science”

Testosterone, progesterone, and levonorgestrel change enzyme levels related to fat production in hamster skin, which could affect skin oil and acne.

research Effects of Oral Contraceptives on the Quality of Life of Women with Polycystic Ovary Syndrome: A Crossover Randomized Controlled Trial

April 2020 in “Research Square (Research Square)”

Oral contraceptives with cyproterone acetate improved quality of life for women with PCOS more than those with levonorgestrel.

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A 27-year-old woman is seeking advice on hair loss treatments, considering options like Spiro, Viviscal tablets, Rogaine, dermarolling, Nizoral shampoo, saw palmetto, castor oil, jojoba oil, and spearmint tea. She has a history of hair loss since childhood, has tried various treatments, and is looking for effective solutions before accepting her condition.